Traverse through list of servers using ssh non-interactively.
I have 300 servers listed in servers.txt
I motto is to check if my id "user1" has sudo privileges on the 3000 servers. I m using sudo -l to check if I have privileges or not. If wish to check this either non-interactively; if not; interactively.
Below is the script I wrote:
However; after returning non-zero for echo $? the script does not traverse through the list and checks only the first server.
Could you propose a feasible solution to the problem ?
I have written this code, and according to my research it SHOULD be going down the list until it is finished, but I am getting blank feedback. Nothing is being output as far as I can tell.
#!/bin/sh
while echo Enter to start traversing
read enter
do
read list <&3
echo $list
done
any... (2 Replies)
Hi all,
I have a script written successfully and tuned by our members, now I am trying to execute this script from a taxi server.
My aim is I want to connect to four servers via ssh where I want to ran a script or run some commands and write the output to a file in the Taxi server.
I... (12 Replies)
Hi All,
Okay, I need help.
I need to ssh in to multiple linux servers execute certain commands and get them to email and print on the screen when the script is being executed.
So below is my script. Its not working :-(.
#!/bin/bash
#linux/UNIX box with ssh key based login... (7 Replies)
Hello
Am trying to run top /glance non-interactively using ssh
from redhat to hp-ux hosts
but getting following errors..
=======================
ssh msi 'top -n 1'
Sorry, I need to know a more specific terminal type than "unknown".
ssh msi top -d1 -n20 > /tmp/top.out
Sorry, I need... (3 Replies)
Hi all.
Im working in a telco Environment and recently setup a new server. The other servers are a combination of Solaris + Linux machines.
Using my new server , I can ping all other servers ( solaris + redhat linux )
but the issue lies where I try to ssh.
I can only successfully ssh linux... (3 Replies)
There are 4 remote hosts that I have stored in an array. A ssh trust has been created from the local host to each of the remote hosts.
I am trying to ssh to each of the servers in a for loop as shown below.
declare -a host
host}]="server1"
host}]="server2"
host}]="server3"
... (9 Replies)
Hello friends,
We have around 500 servers (HPUX, AIX and linux) and all of them need to be accessed from our management box (linux) via password-less ssh.
Out of 500 around 150 servers are setup password-less. We need to setup password-less SSH for remaining servers. First we need to get the... (3 Replies)
Hello,
I tried ssh in debug mode and below is the debug snippet.ssh to a host is not working from any of the hosts
No credentials cache found
debug1: Miscellaneous failure
No credentials cache found
debug1: Next authentication method: publickey
debug1: Offering RSA public key:... (7 Replies)
Hi folks.
I'm pretty new to unix, while I'm learning a lot I'm finding bash scripting quite confusing. Im sure it's not really, my head just hasn't clicked with it.
Anyway, I need a script to loop the ip addresses stored in a file and run a "pgrep <process>" and return the pid or some... (2 Replies)
Hi,
I am trying to complete my bash script in order to find which SSH servers on LAN are still active with the ssh keys, but i am frozen at this step:
#!/bin/bash
# LAN SSH KEYS DISCOVERY SCRIPT
</etc/passwd \
grep /bin/bash |
cut -d: -f6 |
sudo xargs -i -- sh -c '
&& cat... (11 Replies)
Discussion started by: syrius
11 Replies
LEARN ABOUT MOJAVE
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)